diff options
Diffstat (limited to 'source/blender/editors/screen/screen_edit.c')
| -rw-r--r-- | source/blender/editors/screen/screen_edit.c | 1080 |
1 files changed, 1080 insertions, 0 deletions
diff --git a/source/blender/editors/screen/screen_edit.c b/source/blender/editors/screen/screen_edit.c new file mode 100644 index 00000000000..3af5ac2652c --- /dev/null +++ b/source/blender/editors/screen/screen_edit.c @@ -0,0 +1,1080 @@ +/** + * $Id: + * + * ***** BEGIN GPL LICENSE BLOCK ***** + * + * This program is free software; you can redistribute it and/or + * modify it under the terms of the GNU General Public License + * as published by the Free Software Foundation; either version 2 + * of the License, or (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software Foundation, + * Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. + * + * The Original Code is Copyright (C) 2008 Blender Foundation. + * All rights reserved. + * + * + * ***** END GPL LICENSE BLOCK ***** + */ + +#include <string.h> + +#include "MEM_guardedalloc.h" + +#include "DNA_vec_types.h" + +#include "BLI_blenlib.h" + +#include "BKE_global.h" +#include "BKE_library.h" +#include "BKE_main.h" +#include "BKE_screen.h" +#include "BKE_utildefines.h" + +#include "BIF_gl.h" +#include "BIF_glutil.h" + +#include "WM_api.h" +#include "WM_types.h" + +#include "ED_screen.h" +#include "ED_screen_types.h" + +#include "wm_subwindow.h" + +#include "screen_intern.h" /* own module include */ + + +/* ******************* screen vert, edge, area managing *********************** */ + +static ScrVert *screen_addvert(bScreen *sc, short x, short y) +{ + ScrVert *sv= MEM_callocN(sizeof(ScrVert), "addscrvert"); + sv->vec.x= x; + sv->vec.y= y; + + BLI_addtail(&sc->vertbase, sv); + return sv; +} + +static void sortscrvert(ScrVert **v1, ScrVert **v2) +{ + ScrVert *tmp; + + if (*v1 > *v2) { + tmp= *v1; + *v1= *v2; + *v2= tmp; + } +} + +static ScrEdge *screen_addedge(bScreen *sc, ScrVert *v1, ScrVert *v2) +{ + ScrEdge *se= MEM_callocN(sizeof(ScrEdge), "addscredge"); + + sortscrvert(&v1, &v2); + se->v1= v1; + se->v2= v2; + + BLI_addtail(&sc->edgebase, se); + return se; +} + + +ScrEdge *screen_findedge(bScreen *sc, ScrVert *v1, ScrVert *v2) +{ + ScrEdge *se; + + sortscrvert(&v1, &v2); + for (se= sc->edgebase.first; se; se= se->next) + if(se->v1==v1 && se->v2==v2) + return se; + + return NULL; +} + +void removedouble_scrverts(bScreen *sc) +{ + ScrVert *v1, *verg; + ScrEdge *se; + ScrArea *sa; + + verg= sc->vertbase.first; + while(verg) { + if(verg->newv==NULL) { /* !!! */ + v1= verg->next; + while(v1) { + if(v1->newv==NULL) { /* !?! */ + if(v1->vec.x==verg->vec.x && v1->vec.y==verg->vec.y) { + /* printf("doublevert\n"); */ + v1->newv= verg; + } + } + v1= v1->next; + } + } + verg= verg->next; + } + + /* replace pointers in edges and faces */ + se= sc->edgebase.first; + while(se) { + if(se->v1->newv) se->v1= se->v1->newv; + if(se->v2->newv) se->v2= se->v2->newv; + /* edges changed: so.... */ + sortscrvert(&(se->v1), &(se->v2)); + se= se->next; + } + sa= sc->areabase.first; + while(sa) { + if(sa->v1->newv) sa->v1= sa->v1->newv; + if(sa->v2->newv) sa->v2= sa->v2->newv; + if(sa->v3->newv) sa->v3= sa->v3->newv; + if(sa->v4->newv) sa->v4= sa->v4->newv; + sa= sa->next; + } + + /* remove */ + verg= sc->vertbase.first; + while(verg) { + v1= verg->next; + if(verg->newv) { + BLI_remlink(&sc->vertbase, verg); + MEM_freeN(verg); + } + verg= v1; + } + +} + +void removenotused_scrverts(bScreen *sc) +{ + ScrVert *sv, *svn; + ScrEdge *se; + + /* we assume edges are ok */ + + se= sc->edgebase.first; + while(se) { + se->v1->flag= 1; + se->v2->flag= 1; + se= se->next; + } + + sv= sc->vertbase.first; + while(sv) { + svn= sv->next; + if(sv->flag==0) { + BLI_remlink(&sc->vertbase, sv); + MEM_freeN(sv); + } + else sv->flag= 0; + sv= svn; + } +} + +void removedouble_scredges(bScreen *sc) +{ + ScrEdge *verg, *se, *sn; + + /* compare */ + verg= sc->edgebase.first; + while(verg) { + se= verg->next; + while(se) { + sn= se->next; + if(verg->v1==se->v1 && verg->v2==se->v2) { + BLI_remlink(&sc->edgebase, se); + MEM_freeN(se); + } + se= sn; + } + verg= verg->next; + } +} + +void removenotused_scredges(bScreen *sc) +{ + ScrEdge *se, *sen; + ScrArea *sa; + int a=0; + + /* sets flags when edge is used in area */ + sa= sc->areabase.first; + while(sa) { + se= screen_findedge(sc, sa->v1, sa->v2); + if(se==0) printf("error: area %d edge 1 doesn't exist\n", a); + else se->flag= 1; + se= screen_findedge(sc, sa->v2, sa->v3); + if(se==0) printf("error: area %d edge 2 doesn't exist\n", a); + else se->flag= 1; + se= screen_findedge(sc, sa->v3, sa->v4); + if(se==0) printf("error: area %d edge 3 doesn't exist\n", a); + else se->flag= 1; + se= screen_findedge(sc, sa->v4, sa->v1); + if(se==0) printf("error: area %d edge 4 doesn't exist\n", a); + else se->flag= 1; + sa= sa->next; + a++; + } + se= sc->edgebase.first; + while(se) { + sen= se->next; + if(se->flag==0) { + BLI_remlink(&sc->edgebase, se); + MEM_freeN(se); + } + else se->flag= 0; + se= sen; + } +} + +/* adds no space data */ +static ScrArea *screen_addarea(bScreen *sc, ScrVert *v1, ScrVert *v2, ScrVert *v3, ScrVert *v4, short headertype, short spacetype) +{ + ScrArea *sa= MEM_callocN(sizeof(ScrArea), "addscrarea"); + sa->v1= v1; + sa->v2= v2; + sa->v3= v3; + sa->v4= v4; + sa->headertype= headertype; + sa->spacetype= sa->butspacetype= spacetype; + + BLI_addtail(&sc->areabase, sa); + + return sa; +} + +static void screen_delarea(bScreen *sc, ScrArea *sa) +{ + /* XXX need context to cancel operators ED_area_exit(C, sa); */ + BKE_screen_area_free(sa); + BLI_remlink(&sc->areabase, sa); + MEM_freeN(sa); +} + +/* return 0: no split possible */ +/* else return (integer) screencoordinate split point */ +static short testsplitpoint(wmWindow *win, ScrArea *sa, char dir, float fac) +{ + short x, y; + + // area big enough? + if(dir=='v' && (sa->v4->vec.x- sa->v1->vec.x <= 2*AREAMINX)) return 0; + if(dir=='h' && (sa->v2->vec.y- sa->v1->vec.y <= 2*AREAMINY)) return 0; + + // to be sure + if(fac<0.0) fac= 0.0; + if(fac>1.0) fac= 1.0; + + if(dir=='h') { + y= sa->v1->vec.y+ fac*(sa->v2->vec.y- sa->v1->vec.y); + + if(y- sa->v1->vec.y < AREAMINY) + y= sa->v1->vec.y+ AREAMINY; + else if(sa->v2->vec.y- y < AREAMINY) + y= sa->v2->vec.y- AREAMINY; + else y-= (y % AREAGRID); + + return y; + } + else { + x= sa->v1->vec.x+ fac*(sa->v4->vec.x- sa->v1->vec.x); + + if(x- sa->v1->vec.x < AREAMINX) + x= sa->v1->vec.x+ AREAMINX; + else if(sa->v4->vec.x- x < AREAMINX) + x= sa->v4->vec.x- AREAMINX; + else x-= (x % AREAGRID); + + return x; + } +} + +ScrArea *area_split(wmWindow *win, bScreen *sc, ScrArea *sa, char dir, float fac) +{ + ScrArea *newa=NULL; + ScrVert *sv1, *sv2; + short split; + + if(sa==NULL) return NULL; + + split= testsplitpoint(win, sa, dir, fac); + if(split==0) return NULL; + + if(dir=='h') { + /* new vertices */ + sv1= screen_addvert(sc, sa->v1->vec.x, split); + sv2= screen_addvert(sc, sa->v4->vec.x, split); + + /* new edges */ + screen_addedge(sc, sa->v1, sv1); + screen_addedge(sc, sv1, sa->v2); + screen_addedge(sc, sa->v3, sv2); + screen_addedge(sc, sv2, sa->v4); + screen_addedge(sc, sv1, sv2); + + /* new areas: top */ + newa= screen_addarea(sc, sv1, sa->v2, sa->v3, sv2, sa->headertype, sa->spacetype); + area_copy_data(newa, sa, 0); + + /* area below */ + sa->v2= sv1; + sa->v3= sv2; + + } + else { + /* new vertices */ + sv1= screen_addvert(sc, split, sa->v1->vec.y); + sv2= screen_addvert(sc, split, sa->v2->vec.y); + + /* new edges */ + screen_addedge(sc, sa->v1, sv1); + screen_addedge(sc, sv1, sa->v4); + screen_addedge(sc, sa->v2, sv2); + screen_addedge(sc, sv2, sa->v3); + screen_addedge(sc, sv1, sv2); + + /* new areas: left */ + newa= screen_addarea(sc, sa->v1, sa->v2, sv2, sv1, sa->headertype, sa->spacetype); + area_copy_data(newa, sa, 0); + + /* area right */ + sa->v1= sv1; + sa->v2= sv2; + } + + /* remove double vertices en edges */ + removedouble_scrverts(sc); + removedouble_scredges(sc); + removenotused_scredges(sc); + + return newa; +} + +/* empty screen, with 1 dummy area without spacedata */ +/* uses window size */ +bScreen *screen_add(wmWindow *win, char *name) +{ + bScreen *sc; + ScrVert *sv1, *sv2, *sv3, *sv4; + + sc= alloc_libblock(&G.main->screen, ID_SCR, name); + sc->scene= G.scene; + sc->do_refresh= 1; + + win->screen= sc; + + sv1= screen_addvert(sc, 0, 0); + sv2= screen_addvert(sc, 0, win->sizey-1); + sv3= screen_addvert(sc, win->sizex-1, win->sizey-1); + sv4= screen_addvert(sc, win->sizex-1, 0); + + screen_addedge(sc, sv1, sv2); + screen_addedge(sc, sv2, sv3); + screen_addedge(sc, sv3, sv4); + screen_addedge(sc, sv4, sv1); + + /* dummy type, no spacedata */ + screen_addarea(sc, sv1, sv2, sv3, sv4, HEADERDOWN, SPACE_INFO); + + return sc; +} + +static void screen_copy(bScreen *to, bScreen *from) +{ + ScrVert *s1, *s2; + ScrEdge *se; + ScrArea *sa, *saf; + + /* free contents of 'to', is from blenkernel screen.c */ + free_screen(to); + + BLI_duplicatelist(&to->vertbase, &from->vertbase); + BLI_duplicatelist(&to->edgebase, &from->edgebase); + BLI_duplicatelist(&to->areabase, &from->areabase); + to->regionbase.first= to->regionbase.last= NULL; + + s2= to->vertbase.first; + for(s1= from->vertbase.first; s1; s1= s1->next, s2= s2->next) { + s1->newv= s2; + } + + for(se= to->edgebase.first; se; se= se->next) { + se->v1= se->v1->newv; + se->v2= se->v2->newv; + sortscrvert(&(se->v1), &(se->v2)); + } + + saf= from->areabase.first; + for(sa= to->areabase.first; sa; sa= sa->next, saf= saf->next) { + sa->v1= sa->v1->newv; + sa->v2= sa->v2->newv; + sa->v3= sa->v3->newv; + sa->v4= sa->v4->newv; + + sa->spacedata.first= sa->spacedata.last= NULL; + sa->uiblocks.first= sa->uiblocks.last= NULL; + sa->panels.first= sa->panels.last= NULL; + sa->regionbase.first= sa->regionbase.last= NULL; + sa->actionzones.first= sa->actionzones.last= NULL; + sa->scriptlink.totscript= 0; + + area_copy_data(sa, saf, 0); + } + + /* put at zero (needed?) */ + for(s1= from->vertbase.first; s1; s1= s1->next) + s1->newv= NULL; + +} + + +/* with sa as center, sb is located at: 0=W, 1=N, 2=E, 3=S */ +/* -1 = not valid check */ +/* used with join operator */ +int area_getorientation(bScreen *screen, ScrArea *sa, ScrArea *sb) +{ + ScrVert *sav1, *sav2, *sav3, *sav4; + ScrVert *sbv1, *sbv2, *sbv3, *sbv4; + + if(sa==NULL || sb==NULL) return -1; + + sav1= sa->v1; + sav2= sa->v2; + sav3= sa->v3; + sav4= sa->v4; + sbv1= sb->v1; + sbv2= sb->v2; + sbv3= sb->v3; + sbv4= sb->v4; + + if(sav1==sbv4 && sav2==sbv3) { /* sa to right of sb = W */ + return 0; + } + else if(sav2==sbv1 && sav3==sbv4) { /* sa to bottom of sb = N */ + return 1; + } + else if(sav3==sbv2 && sav4==sbv1) { /* sa to left of sb = E */ + return 2; + } + else if(sav1==sbv2 && sav4==sbv3) { /* sa on top of sb = S*/ + return 3; + } + + return -1; +} + +/* Helper function to join 2 areas, it has a return value, 0=failed 1=success +* used by the split, join operators +*/ +int screen_area_join(bScreen* scr, ScrArea *sa1, ScrArea *sa2) +{ + int dir; + + dir = area_getorientation(scr, sa1, sa2); + /*printf("dir is : %i \n", dir);*/ + + if (dir < 0) + { + if (sa1 ) sa1->flag &= ~AREA_FLAG_DRAWJOINFROM; + if (sa2 ) sa2->flag &= ~AREA_FLAG_DRAWJOINTO; + return 0; + } + + if(dir == 0) { + sa1->v1= sa2->v1; + sa1->v2= sa2->v2; + screen_addedge(scr, sa1->v2, sa1->v3); + screen_addedge(scr, sa1->v1, sa1->v4); + } + else if(dir == 1) { + sa1->v2= sa2->v2; + sa1->v3= sa2->v3; + screen_addedge(scr, sa1->v1, sa1->v2); + screen_addedge(scr, sa1->v3, sa1->v4); + } + else if(dir == 2) { + sa1->v3= sa2->v3; + sa1->v4= sa2->v4; + screen_addedge(scr, sa1->v2, sa1->v3); + screen_addedge(scr, sa1->v1, sa1->v4); + } + else if(dir == 3) { + sa1->v1= sa2->v1; + sa1->v4= sa2->v4; + screen_addedge(scr, sa1->v1, sa1->v2); + screen_addedge(scr, sa1->v3, sa1->v4); + } + + screen_delarea(scr, sa2); + removedouble_scrverts(scr); + sa1->flag &= ~AREA_FLAG_DRAWJOINFROM; + + return 1; +} + +void select_connected_scredge(bScreen *sc, ScrEdge *edge) +{ + ScrEdge *se; + ScrVert *sv; + int oneselected; + char dir; + + /* select connected, only in the right direction */ + /* 'dir' is the direction of EDGE */ + + if(edge->v1->vec.x==edge->v2->vec.x) dir= 'v'; + else dir= 'h'; + + sv= sc->vertbase.first; + while(sv) { + sv->flag = 0; + sv= sv->next; + } + + edge->v1->flag= 1; + edge->v2->flag= 1; + + oneselected= 1; + while(oneselected) { + se= sc->edgebase.first; + oneselected= 0; + while(se) { + if(se->v1->flag + se->v2->flag==1) { + if(dir=='h') if(se->v1->vec.y==se->v2->vec.y) { + se->v1->flag= se->v2->flag= 1; + oneselected= 1; + } + if(dir=='v') if(se->v1->vec.x==se->v2->vec.x) { + se->v1->flag= se->v2->flag= 1; + oneselected= 1; + } + } + se= se->next; + } + } +} + +/* test if screen vertices should be scaled */ +static void screen_test_scale(bScreen *sc, int winsizex, int winsizey) +{ + ScrVert *sv=NULL; + ScrArea *sa, *san; + int sizex, sizey; + float facx, facy, tempf, min[2], max[2]; + + /* calculate size */ + min[0]= min[1]= 10000.0f; + max[0]= max[1]= 0.0f; + + for(sv= sc->vertbase.first; sv; sv= sv->next) { + min[0]= MIN2(min[0], sv->vec.x); + min[1]= MIN2(min[1], sv->vec.y); + max[0]= MAX2(max[0], sv->vec.x); + max[1]= MAX2(max[1], sv->vec.y); + } + + /* always make 0.0 left under */ + for(sv= sc->vertbase.first; sv; sv= sv->next) { + sv->vec.x -= min[0]; + sv->vec.y -= min[1]; + } + + sizex= max[0]-min[0]; + sizey= max[1]-min[1]; + + if(sizex!= winsizex || sizey!= winsizey) { + facx= winsizex; + facx/= (float)sizex; + facy= winsizey; + facy/= (float)sizey; + + /* make sure it fits! */ + for(sv= sc->vertbase.first; sv; sv= sv->next) { + tempf= ((float)sv->vec.x)*facx; + sv->vec.x= (short)(tempf+0.5); + sv->vec.x+= AREAGRID-1; + sv->vec.x-= (sv->vec.x % AREAGRID); + + CLAMP(sv->vec.x, 0, winsizex); + + tempf= ((float)sv->vec.y )*facy; + sv->vec.y= (short)(tempf+0.5); + sv->vec.y+= AREAGRID-1; + sv->vec.y-= (sv->vec.y % AREAGRID); + + CLAMP(sv->vec.y, 0, winsizey); + } + } + + /* test for collapsed areas. This could happen in some blender version... */ + for(sa= sc->areabase.first; sa; sa= san) { + san= sa->next; + if(sa->v1==sa->v2 || sa->v3==sa->v4 || sa->v2==sa->v3) + screen_delarea(sc, sa); + } + + /* make each window at least HEADERY high */ + for(sa= sc->areabase.first; sa; sa= sa->next) { + int headery= HEADERY+1; + + if(sa->v1->vec.y+headery > sa->v2->vec.y) { + /* lower edge */ + ScrEdge *se= screen_findedge(sc, sa->v4, sa->v1); + if(se && sa->v1!=sa->v2 ) { + int yval; + + select_connected_scredge(sc, se); + + /* all selected vertices get the right offset */ + yval= sa->v2->vec.y-headery; + sv= sc->vertbase.first; + while(sv) { + /* if is a collapsed area */ + if(sv!=sa->v2 && sv!=sa->v3) { + if(sv->flag) sv->vec.y= yval; + } + sv= sv->next; + } + } + } + } + +} + +/* *********************** DRAWING **************************************** */ + + +#define SCR_BACK 0.55 +#define SCR_ROUND 12 + +/* draw vertical shape visualising future joining (left as well + * right direction of future joining) */ +static void draw_horizontal_join_shape(ScrArea *sa, char dir) +{ + vec2f points[10]; + short i; + float w, h; + float width = sa->v3->vec.x - sa->v1->vec.x; + float height = sa->v3->vec.y - sa->v1->vec.y; + + if(height<width) { + h = height/8; + w = height/4; + } + else { + h = width/8; + w = width/4; + } + + points[0].x = sa->v1->vec.x; + points[0].y = sa->v1->vec.y + height/2; + + points[1].x = sa->v1->vec.x; + points[1].y = sa->v1->vec.y; + + points[2].x = sa->v4->vec.x - w; + points[2].y = sa->v4->vec.y; + + points[3].x = sa->v4->vec.x - w; + points[3].y = sa->v4->vec.y + height/2 - 2*h; + + points[4].x = sa->v4->vec.x - 2*w; + points[4].y = sa->v4->vec.y + height/2; + + points[5].x = sa->v4->vec.x - w; + points[5].y = sa->v4->vec.y + height/2 + 2*h; + + points[6].x = sa->v3->vec.x - w; + points[6].y = sa->v3->vec.y; + + points[7].x = sa->v2->vec.x; + points[7].y = sa->v2->vec.y; + + points[8].x = sa->v4->vec.x; + points[8].y = sa->v4->vec.y + height/2 - h; + + points[9].x = sa->v4->vec.x; + points[9].y = sa->v4->vec.y + height/2 + h; + + if(dir=='l') { + /* when direction is left, then we flip direction of arrow */ + float cx = sa->v1->vec.x + width; + for(i=0;i<10;i++) { + points[i].x -= cx; + points[i].x = -points[i].x; + points[i].x += sa->v1->vec.x; + } + } + + glBegin(GL_POLYGON); + for(i=0;i<5;i++) + glVertex2f(points[i].x, points[i].y); + glEnd(); + glBegin(GL_POLYGON); + for(i=4;i<8;i++) + glVertex2f(points[i].x, points[i].y); + glVertex2f(points[0].x, points[0].y); + glEnd(); + + glRectf(points[2].x, points[2].y, points[8].x, points[8].y); + glRectf(points[6].x, points[6].y, points[9].x, points[9].y); +} + +/* draw vertical shape visualising future joining (up/down direction) */ +static void draw_vertical_join_shape(ScrArea *sa, char dir) +{ + vec2f points[10]; + short i; + float w, h; + float width = sa->v3->vec.x - sa->v1->vec.x; + float height = sa->v3->vec.y - sa->v1->vec.y; + + if(height<width) { + h = height/4; + w = height/8; + } + else { + h = width/4; + w = width/8; + } + + points[0].x = sa->v1->vec.x + width/2; + points[0].y = sa->v3->vec.y; + + points[1].x = sa->v2->vec.x; + points[1].y = sa->v2->vec.y; + + points[2].x = sa->v1->vec.x; + points[2].y = sa->v1->vec.y + h; + + points[3].x = sa->v1->vec.x + width/2 - 2*w; + points[3].y = sa->v1->vec.y + h; + + points[4].x = sa->v1->vec.x + width/2; + points[4].y = sa->v1->vec.y + 2*h; + + points[5].x = sa->v1->vec.x + width/2 + 2*w; + points[5].y = sa->v1->vec.y + h; + + points[6].x = sa->v4->vec.x; + points[6].y = sa->v4->vec.y + h; + + points[7].x = sa->v3->vec.x; + points[7].y = sa->v3->vec.y; + + points[8].x = sa->v1->vec.x + width/2 - w; + points[8].y = sa->v1->vec.y; + + points[9].x = sa->v1->vec.x + width/2 + w; + points[9].y = sa->v1->vec.y; + + if(dir=='u') { + /* when direction is up, then we flip direction of arrow */ + float cy = sa->v1->vec.y + height; + for(i=0;i<10;i++) { + points[i].y -= cy; + points[i].y = -points[i].y; + points[i].y += sa->v1->vec.y; + } + } + + glBegin(GL_POLYGON); + for(i=0;i<5;i++) + glVertex2f(points[i].x, points[i].y); + glEnd(); + glBegin(GL_POLYGON); + for(i=4;i<8;i++) + glVertex2f(points[i].x, points[i].y); + glVertex2f(points[0].x, points[0].y); + glEnd(); + + glRectf(points[2].x, points[2].y, points[8].x, points[8].y); + glRectf(points[6].x, points[6].y, points[9].x, points[9].y); +} + +/* draw join shape due to direction of joining */ +static void draw_join_shape(ScrArea *sa, char dir) +{ + if(dir=='u' || dir=='d') + draw_vertical_join_shape(sa, dir); + else + draw_horizontal_join_shape(sa, dir); +} + +/* draw screen area darker with arrow (visualisation of future joining) */ +static void scrarea_draw_shape_dark(ScrArea *sa, char dir) +{ + glBlendFunc(GL_SRC_ALPHA, GL_ONE_MINUS_SRC_ALPHA); + glEnable(GL_BLEND); + glColor4ub(0, 0, 0, 50); + draw_join_shape(sa, dir); + glDisable(GL_BLEND); +} + +/* draw screen area ligher with arrow shape ("eraser" of previous dark shape) */ +static void scrarea_draw_shape_light(ScrArea *sa, char dir) +{ + glBlendFunc(GL_DST_COLOR, GL_SRC_ALPHA); + glEnable(GL_BLEND); + /* value 181 was hardly computed: 181~105 */ + glColor4ub(255, 255, 255, 50); + /* draw_join_shape(sa, dir); */ + glRecti(sa->v1->vec.x, sa->v1->vec.y, sa->v3->vec.x, sa->v3->vec.y); + glDisable(GL_BLEND); +} + +/** screen edges drawing **/ +static void drawscredge_area(ScrArea *sa) +{ + short x1= sa->v1->vec.x; + short y1= sa->v1->vec.y; + short x2= sa->v3->vec.x; + short y2= sa->v3->vec.y; + + cpack(0x0); + + /* right border area */ + sdrawline(x2, y1, x2, y2); + + /* left border area */ + if(x1>0) { /* otherwise it draws the emboss of window over */ + sdrawline(x1, y1, x1, y2); + } + + /* top border area */ + sdrawline(x1, y2, x2, y2); + + /* bottom border area */ + sdrawline(x1, y1, x2, y1); + +} + +/* ****************** EXPORTED API TO OTHER MODULES *************************** */ + +bScreen *ED_screen_duplicate(wmWindow *win, bScreen *sc) +{ + bScreen *newsc; + + if(sc->full != SCREENNORMAL) return NULL; /* XXX handle this case! */ + + /* make new empty screen: */ + newsc= screen_add(win, sc->id.name+2); + /* copy all data */ + screen_copy(newsc, sc); + + return newsc; +} + + +void ED_screen_do_listen(wmWindow *win, wmNotifier *note) +{ + + /* generic notes */ + switch(note->type) { + case WM_NOTE_WINDOW_REDRAW: + win->screen->do_draw= 1; + break; + case WM_NOTE_SCREEN_CHANGED: + win->screen->do_draw= win->screen->do_refresh= 1; + break; + case WM_NOTE_GESTURE_REDRAW: + win->screen->do_gesture= 1; /* XXX gestures are stored in window, draw per region... a bit weak? wait for proper composite? (ton) */ + break; + } +} + + +void ED_screen_draw(wmWindow *win) +{ + ScrArea *sa; + ScrArea *sa1=NULL; + ScrArea *sa2=NULL; + int dir = -1; + int dira = -1; + + wm_subwindow_set(win, win->screen->mainwin); + + for(sa= win->screen->areabase.first; sa; sa= sa->next) { + if (sa->flag & AREA_FLAG_DRAWJOINFROM) sa1 = sa; + if (sa->flag & AREA_FLAG_DRAWJOINTO) sa2 = sa; + drawscredge_area(sa); + } + + /* blended join arrow */ + if (sa1 && sa2) { + dir = area_getorientation(win->screen, sa1, sa2); + if (dir >= 0) { + switch(dir) { + case 0: /* W */ + dir = 'r'; + dira = 'l'; + break; + case 1: /* N */ + dir = 'd'; + dira = 'u'; + break; + case 2: /* E */ + dir = 'l'; + dira = 'r'; + break; + case 3: /* S */ + dir = 'u'; + dira = 'd'; + break; + } + } + scrarea_draw_shape_dark(sa2, dir); + scrarea_draw_shape_light(sa1, dira); + } + + if(G.f & G_DEBUG) printf("draw screen\n"); + win->screen->do_draw= 0; +} + +/* make this screen usable */ +/* for file read and first use, for scaling window, area moves */ +void ED_screen_refresh(wmWindowManager *wm, wmWindow *win) +{ + ScrArea *sa; + rcti winrct= {0, win->sizex-1, 0, win->sizey-1}; + + screen_test_scale(win->screen, win->sizex, win->sizey); + + if(win->screen->mainwin==0) + win->screen->mainwin= wm_subwindow_open(win, &winrct); + else + wm_subwindow_position(win, win->screen->mainwin, &winrct); + + for(sa= win->screen->areabase.first; sa; sa= sa->next) { + /* set spacetype and region callbacks, calls init() */ + /* sets subwindows for regions, adds handlers */ + ED_area_initialize(wm, win, sa); + } + + if(G.f & G_DEBUG) printf("set screen\n"); + win->screen->do_refresh= 0; + +} + +/* file read, set all screens, ... */ +void ED_screens_initialize(wmWindowManager *wm) +{ + wmWindow *win; + + for(win= wm->windows.first; win; win= win->next) { + + if(win->screen==NULL) + win->screen= G.main->screen.first; + + ED_screen_refresh(wm, win); + } +} + +void ED_region_exit(bContext *C, ARegion *ar) +{ + ARegion *prevar= C->region; + + C->region= ar; + WM_event_remove_handlers(C, &ar->handlers); + C->region= prevar; +} + +void ED_area_exit(bContext *C, ScrArea *sa) +{ + ScrArea *prevsa= C->area; + ARegion *ar; + + C->area= sa; + for(ar= sa->regionbase.first; ar; ar= ar->next) + ED_region_exit(C, ar); + + WM_event_remove_handlers(C, &sa->handlers); + C->area= prevsa; +} + +void ED_screen_exit(bContext *C, wmWindow *window, bScreen *screen) +{ + wmWindow *prevwin= C?C->window:NULL; + ScrArea *sa; + ARegion *ar; + + C->window= window; + for(ar= screen->regionbase.first; ar; ar= ar->next) + ED_region_exit(C, ar); + + for(sa= screen->areabase.first; sa; sa= sa->next) + ED_area_exit(C, sa); + + WM_event_remove_handlers(C, &window->handlers); + C->window= prevwin; +} + + +/* called in wm_event_system.c. sets state var in screen */ +void ED_screen_set_subwinactive(wmWindow *win) +{ + if(win->screen) { + wmEvent *event= win->eventstate; + ScrArea *sa; + int oldswin= win->screen->subwinactive; + + /* XXX prevent this call for modal menus now */ + if(win->screen->regionbase.first) + return; + + for(sa= win->screen->areabase.first; sa; sa= sa->next) { + if(event->x > sa->totrct.xmin && event->x < sa->totrct.xmax) + if(event->y > sa->totrct.ymin && event->y < sa->totrct.ymax) + break; + } + if(sa) { + ARegion *ar; + for(ar= sa->regionbase.first; ar; ar= ar->next) { + if(BLI_in_rcti(&ar->winrct, event->x, event->y)) + win->screen->subwinactive= ar->swinid; + } + } + else + win->screen->subwinactive= win->screen->mainwin; + + /* check for redraw headers */ + if(oldswin!=win->screen->subwinactive) { + + for(sa= win->screen->areabase.first; sa; sa= sa->next) { + ARegion *ar; + int do_draw= 0; + + for(ar= sa->regionbase.first; ar; ar= ar->next) + if(ar->swinid==oldswin || ar->swinid==win->screen->subwinactive) + do_draw= 1; + + if(do_draw) { + for(ar= sa->regionbase.first; ar; ar= ar->next) + if(ar->regiontype==RGN_TYPE_HEADER) + ar->do_draw= 1; /* XXX */ + } + } + } + } +} + +int ED_screen_area_active(const bContext *C) +{ + + if(C->screen && C->area) { + ARegion *ar; + for(ar= C->area->regionbase.first; ar; ar= ar->next) + if(ar->swinid == C->screen->subwinactive) + return 1; + } + return 0; +} |